12:00 am is confused with 12:00 pm in Arabic local.

When having the Arabic local enabled, Dayjs has trouble formatting 12:00 pm hours of the day.

```ts
import dayjs from 'dayjs'
import "dayjs/locale/ar";

dayjs.locale("ar");
// The symbol `ص` is for "day hours"
// 12 am is translated to `12 ص` which is correct and expected.
dayjs("2024-08-18 12:00 am").format("hh:mm a") // => 12:00 ص
// the `12 pm` is translated to `12 ص` which is not correct and should be translated to `12 م` which is the symbol for "night hours"
dayjs("2024-08-18 12:00 pm").format("hh:mm a") // => 12:00 ص
```

This will confuse the user about what time of the day it is.

### Expected Behavior
`12:00 pm` should be translated to `12:00 م` using the nighttime symbol ([here](https://github.com/iamkun/dayjs/blob/dev/src/locale/ar.js#L40))

**Information**
- Day.js Version: ^1.11.12
- OS: WSL (WINDOW)
- Browser: Chrome 127.0.6533.120
- Time zone: GMT+03

Start by inspecting src/locale/ar.js, especially the meridiem formatting referenced in the issue. Reproduce the two Day.js examples with the Arabic locale and verify that 12:00 am remains 12:00 ص while 12:00 pm formats as 12:00 م.

Written by the indexing model from the issue text.